

🛡️ Protect your grout, elevate your space—because clean lines mean confident living.
Black Diamond Stoneworks' Ultimate Grout Sealer offers a professional-strength, water-based formula that creates an invisible, long-lasting barrier against stains and moisture. Safe for all grout colors and types, it dries quickly and is easy to apply via spray, making grout maintenance effortless. Proudly made in the USA, this low-odor, eco-conscious sealer ensures your tile, stone, and grout surfaces stay pristine and protected with minimal effort.







| Brand | Black Diamond Stoneworks |
| Item Form | Spray |
| Item Volume | 16 Fluid Ounces |
| Material Feature | Fragrance Free |
| Scent | Unscented |
| Specific Uses For Product | Showers,Floors,Tile,Grout |
T**W
Works well, easy to apply.
The product is easy to apply and seems to hold up well. Haven't had a real test yet with colored liquid but I've had it on for a couple weeks and the grout still looks clean. It does dry fairly quickly and the two coats is a good idea. I used it on my floor with quarter inch grout lines. I used a foam brush typically used for crafts and it worked well. Just need to tilt it and let it drain out for a few seconds after dipping the end in the sealer.
S**R
Perfect grout sealer
Recommended by gocleanco. Perfect grout sealer. Easy to use. No smell. Sealed my dark grey grout in 2 coats
D**Y
Like this product
I would recommend it .
S**Y
Good grout product
You receive a lot of sealant . I sealed two bathrooms, laundry room foyer and hallway. Still have some left. Didn’t discolor the bright white grout on all these floors. Is indeed clear
D**R
Black diamond grout sealer
I just applied the product to my kitchen floor grout. (Cleaned with black diamond grout cleaner) I applied with a slanted paint brush. Went on easy and smooth. Not very much dripping. Now how long it will last...have to wait and see.
A**R
Cleaning
Great stuff
J**D
Very good item
Used it on the kitchen balk splash - worked
L**D
Great product
Easy to apply, absolutely no odor at all.
Trustpilot
2 weeks ago
2 months ago